sets the directory in which all the upcoming commands will be executed.
does exactly what it says, it gets the package.json and package- lock.json and copies it to the WORKDIR.
sets an environment variable inside the container with the name PORT and the value 5000
I tried out a lot of different tools but none of them had the flexibiity and customizability
It has a nice and clean user interface and it lets you import an existing repository.